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RI 6829 Reaction Of Coal In Argon And Argon-Hydrogen Plasmas
By Walter Kawa
Coals of various rank were reacted by the Bureau of Nines in plasma jets generated from argon and argon-hydrogen mixtures containing up to 33 volume-percent hydrogen. Average plasma temperatures range
Jan 1, 1966
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RI 8143 A Conceptual Model for the Role of Oxygen in Xanthate Adsorption on Galena
By E. E. Maust
The present work is part of an ongoing Bureau of Mines effort to provide a better understanding of the fundamental phenomena involved in sulfide flotation, the role of oxygen in xanthate adsorption be
Jan 1, 1976
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RI 5868 Electrowinning Cerium-Group And Yttrium-Group Metals ? Summary And Introduction
By E. Morrice
This report of the Federal Bureau of Mines presents a laboratory procedure, with the requisite equipment, for electrowinning ingot (liquid) cerium metal from a fused-fluoride bath, the metal purity be
Jan 1, 1961
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RI 5091 Caustic Soda Fusion Of Zirconium Ores ? Summary
By H. L. Gilbert
Zircon sand may be reacted with sodium hydroxide at 600° C. to form sodium zirconate and sodium silicate. Sodium zirconate is water insoluble and so may be washed free of sodium silicate. The sodium z
Jan 1, 1954
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RI 3697 A Simple Device for Detecting Small Concentrations of Organic Halide Gases in the Atmosphere
By G. W. Jones, R. E. Kennedy
A simple , quick, and relatively accurate device is needed for determining the presence of very small concentrations of organic halide gases in various atmospheres . Such a device would enable safety
Apr 1, 1943
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IC 7821 Mechanism Of The Synthesis Of Hydrocarbons From Carbon Monoxide And Hydrogen - From The Russian Report Of Y. T. Eidus
Ten years ago we surveyed in "Uspekhi Khimii" the mechanism of the synthesis of hydrocarbons from CO and H2 (1).5 With new data obtained since then, mostly by Soviet researchers, our previous work (2)
Jan 1, 1958
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RI 6662 Hydrogen Reduction Of Galena And Sphalerite
By J. D. Spagnola
The Bureau of Mines conducted research to obtain comparative data on the extent of reduction of galena and sphalerite with molecular hydrogen and with hydrogen from the thermal cracking of ammonia and
Jan 1, 1965
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RI 5131 Estimate Of Known Recoverable Reserves And The Preparation And Carbonizing Properties Of Coking Coal In Overton County, Tenn. ? Summary And Conclusions ? Reserves
By Lloyd Williams
1. The investigation shows that the bed identified as Wilder in this report is the only bed in Overton County that has produced commercial coal and is the only bed in which coal reserves were estimate
Jan 1, 1955
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IC 8266.1 Review and Evaluation of Silver-Production Techniques
By B. H. Clemmons, C. H. Schack
Extractive metallurgy techniques currently employed to recover silver from primary ores and secondary scrap were reviewed and evaluated to identify and delineate metallurgical problems whose resolutio
Mar 1, 1965
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RI 6924 Equations For Calculating The Thermodynamic Properties Of Fluids, Including Those In The Two-Phase Region, From An Empirical Equation Of State
By Robert E. Barieau
General expressions for evaluating practically all the thermodynamic properties of a fluid from a single equation of state are derived. Most of the formulas are expressed in terms of the compressibili
Jan 1, 1967
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Carbonizing Properties Of West Virginia Coals And Blends Of Coals From The Alma, Cedar Grove, Dorothy Powellton A, Eagle, Pocahontas And Beckley Beds ? Introduction
By A. C. Fieldner
In 1927 the Carbonization Committee of the American Gas Association proposed cooperation with the Bureau of Mines in the development of suitable methods for determining the carbonizing properties of A
Jan 1, 1938
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RI 6470 Hydrogenation of New Mexico Coal at Short Residence Time and High Temperatures
By Raymond W. Hiteshue, Sam Friedman, Martin D. Schlesinger
The Bureau of Mines in cooperation with the El Paso Natural Gas Co. investigated the effect of high temperature and pressure at short residence times on the hydrogenation of a New Mexico coal to gaseo
Jan 1, 1964
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Bulletin 150 Electrodeposition of Gold and Silver from Cyanide Solutions
By S. B. Christy
This report on the electrodeposition of gold and silver from cyanide solutions represents work that has occupied my time at intervals during the past 20 years. The investigation has been carried on si
Jan 1, 1919
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Bulletin 119 Analyses of Coals Purchased by the Government During the Years 1908-1915
By GEORGE S. POPE
The Government of the United States annually expends approximately $8,000,000 for coal. Prior to 1906, this coal was purchased mainly on its reputation, or trade name, rather than under contracts spec
Jan 1, 1916
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RI 4834 Preparation Characteristics Of Coal From Somerset County, Pa.
By Wiliam L. Crentz
The importance of Somerset County, Pa., as a coal producer is due in large measure to the presence reserves of low-volatile bituminous coals. Although many coal beds of minable thickness are present,
Jan 1, 1951
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Preparation Characteristics Of Some Coals Available For The Synthetic Liquid Fuels Industry ? Introduction
By Thomas Fraser
WHEN the Bureau of Mines initiated the program of large-scale research and development in the field of synthetic liquid fuels authorized in the Synthetic Liquid Fuels Act of April 5, 1044, the Coal Pr
Jan 1, 1950
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RI 3157 Washability Data On Certain Coal Beds Of Alabama With Special Reference To Sulphur Elimination ? Introduction
By B. W. Gandrud
This report, consisting mostly of float-and-sink data and washability curves, has been prepared in connection with an exhaustive study of coal preparation in Alabama conducted, by the U, S. Bureau of
Jan 1, 1932
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RI 3157 Washability Data On Certain Coal Beds Of Alabama With Special Reference To Sulphur Elimination
By B. W. Candrud
This report, consisting mostly of float-and-sink data and washability curves, has been prepared in connection with an exhaustive study of coal preparation in Alabama conducted by the U. S. Bureau of M
Jan 1, 1932
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Bulletin 124 Sandstone Quarrying in the United States
By Oliver Bowles
The term" sandstone" is applied to a rock composed of mineral grains smaller than pebbles, cemented together more or less firmly. "Conglomerate" is the name given to a rock composed of pebbles, or peb
Jan 1, 1917
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RI 7159 Flotation Of Mica From Pegmatites Of Randolph County, Ala.
By Ralph B. Adair
The Bureau of Mines conducted laboratory and small-scale, continuous tests of weathered mica-pegmatite ores from Randolph County, Ala., to determine the feasibility of recovering commercial-grade mica
Jan 1, 1968